杠杆的数控加工工艺、工装设计及编程.doc

全套设计包括设计说明书+CAD图纸。购买请联系qq：541937254 PAGE PAGE 5 杠杆的数控加工工艺、工装设计及编程 摘 要 随着科学技术飞速发展和经济竞争的日趋激烈，机械产品的更新速度越来越快，数控加工技术作为先进生产力的代表，是近年来机械工业的一大变革，在机械及相关行业领域发挥着重要的作用。正确、实用的加工工艺又是体现出其优越性的重要要素。 本次设计题目为杠杆零件的数控加工工艺、工装设计及编程。零件结构较简单，但零件形状不规则；从零件的用途分析知其对各孔的尺寸精度要求较高，适合数控加工。由于加工要素主要为平面和孔，我选择了XK714D数控铣床来实现其机加工。论文主要内容为零件的数控加工工艺，及其工装夹具设计和其数控加工程序。论文内容包含了零件数控加工的生产周期的主要环节。其中其加工工艺和工装夹具的设计，是本次论文的重点。 较之以前本零件的设计，此次设计中主要采用了先进的数控加工，且在数控铣床上使用一套工装夹具即完成了其所有要求要素的全部机加工，操作简便、快捷。不仅能有效提高生产效率，缩短生产周期，而且提高企业生产效益和市场竞争力。 关键词：杠杆，数控，铣床，工艺，工装，编程 THE NC MACHINING PROCESS，TOOLING DESIGN AND PROGRAMMING OF THE LEVERAGE ABSTRACT With the rapid development of science and increasingly fierce economic competition, mechanical products update faster and faster. CNC machining technology as the representative of the advanced productive forces is a major change in machine industry in recent years, and plays an important role in the field of machinery and related industries. Correct and practical processing technology is the key element to show its advantages. The subject of this design is lever part. Its structure is relatively simple, but its shape is irregular. From the use of the part , we know that the require of the holes’ size precision is high. So it is suited to product with CNC machine. Its processing elements are planes and holes, so I choose XK714D CNC milling machine to achieve its machining process. This paper mainly include its CNC machining process, design of its fixture, and its CNC machining process program. It contains the main components in the production cycle of CNC machining. Its processing technology and the design of fixture are the focus of this thesis. Comparing with previous design of this type of part, this paper mainly uses the advancing CNC machining, and uses a fixture to complete all the machining operation of all the required elements. The operation is more simple and faster. It can increase productivity significantly, shorten the production cycle, improve production efficiency and ma